P0692Fan 1 Control Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- The engine module switches the radiator fan relays (or the input of a PWM fan module) through output drivers and checks each control circuit electrically. GM sets a short to ground or voltage at 0.5 Ω or less after 50 of 63 samples, with the lamp after two trips; GM Europe's 2011 Saab 9-5 covers P0691–P0696 with relay assignments, the Saab 9-4X's PWM fan module reacts within 1 s. P0692 means the fan 1 control circuit is shorted to voltage – the driver cannot switch the relay, so the fan does not run and the engine may overheat in traffic.
- What you may notice
- Check engine light (GM after two trips)
- Fan does not run
- Rising coolant temperature in traffic or with A/C on
- A/C may be switched off to protect the engine
- Likely causes
- LikelyControl wire shorted to battery or ignition voltage
- PossibleRelay coil open or wrong relay fitted
- PossiblePWM fan module feeding voltage back onto the control line
- RareEngine module driver faulty
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Easy · Often possible to do yourself.Typical cost: €20 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.